From: Michal Simek <michal.simek@xilinx.com>
To: Yu Kuai <yukuai3@huawei.com>, <michal.simek@xilinx.com>,
<daniel.lezcano@linaro.org>, <tglx@linutronix.de>,
<soren.brinkmann@xilinx.com>
Cc: zhangxiaoxu5@huawei.com, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, yi.zhang@huawei.com
Subject: Re: [PATCH] "clocksource/drivers/cadence_ttc: fix memory leak in ttc_setup_clockevent()
Date: Tue, 10 Nov 2020 11:04:22 +0100 [thread overview]
Message-ID: <1ff2a871-849e-cbac-b731-8104da213637@xilinx.com> (raw)
In-Reply-To: <20201110011508.2482821-1-yukuai3@huawei.com>
On 10. 11. 20 2:15, Yu Kuai wrote:
> If clk_notifier_register() failed, ttc_setup_clockevent() will return
> without freeing 'ttcce', which will leak memory.
>
> Fixes: 70504f311d4b ("clocksource/drivers/cadence_ttc: Convert init function to return error")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Yu Kuai <yukuai3@huawei.com>
> ---
> drivers/clocksource/timer-cadence-ttc.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/clocksource/timer-cadence-ttc.c b/drivers/clocksource/timer-cadence-ttc.c
> index 80e960602030..32b9560ce408 100644
> --- a/drivers/clocksource/timer-cadence-ttc.c
> +++ b/drivers/clocksource/timer-cadence-ttc.c
> @@ -426,6 +426,7 @@ static int __init ttc_setup_clockevent(struct clk *clk,
> &ttcce->ttc.clk_rate_change_nb);
> if (err) {
> pr_warn("Unable to register clock notifier.\n");
> + kfree(ttcce);
> return err;
> }
>
>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Thanks,
Michal
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next prev parent reply other threads:[~2020-11-10 10:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-10 1:15 [PATCH] "clocksource/drivers/cadence_ttc: fix memory leak in ttc_setup_clockevent() Yu Kuai
2020-11-10 10:04 ` Michal Simek [this message]
2020-11-10 10:07 ` Michal Simek
2020-11-11 1:16 ` [PATCH V2] clocksource/drivers/cadence_ttc: " Yu Kuai
2020-11-12 9:59 ` Daniel Lezcano
2020-11-16 7:08 ` [PATCH V3] " Yu Kuai
2020-11-16 13:51 ` [PATCH V4] " Yu Kuai
2020-11-17 9:07 ` Daniel Lezcano
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